不填
a
difficulty 既可以是可數(shù)的,也可以是不可數(shù)的.
做不可數(shù)的時候,表示抽象的“困難”,
作可數(shù)的時候,表示“困難的事”.
這里強調的是we have had great difficulty,表示抽象的“困難”
后面problem是可數(shù)名詞.
you can't imagine what（）great difficulty we have had working out such （）difficult problem
you can't imagine what（）great difficulty we have had working out such （）difficult problem
這里兩個空要填什么冠詞,difficulty可數(shù)嗎
這里兩個空要填什么冠詞,difficulty可數(shù)嗎
英語人氣：344 ℃時間：2019-10-17 06:29:12
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